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2007-2008 Yamaha R1 Slash Cut Slip-On Exhaust System by Akrapovic
	Quantity in Basket: None Code: AKRY5 Usually ships in 2-3 days.
	Exhaust : < Select One > Carbon Slash Cut Titanium Slash Cut Y-Pipe : < Select One > No Yes (+$199.95)
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2007-2008 Yamaha R1 Slash Cut Slip-On Exhaust System by Akrapovic The Akrapovic SLIP-ON exhaust system for the 2007-2008 Yamaha R1 comes with two mufflers and two link pipes. Akrapovic has also developed an extended version with an optional Y-connecting tube. The basic Akrapovic SLIP-ON system allows the use of the stock catalytic converter. The version with the optional Y-connecting tube extends past the point where the catalytic converter is located, so that the catalytic converter is removed. There is no major difference in performance between the two systems. However, they both outperform the stock system in both power and torque. The system is intended for riders who do not wish to make major exhaust system modifications.   The basic configuration of the Akrapovic SLIP-ON system for the Yamaha R1 is as follows: the system includes two mufflers, either titanium or carbon-fiber, attached under the seat with carbon-fiber clamps. The muffler outlet caps are made of carbon fiber. The cylindrical link pipes are made of titanium and are welded to the mufflers. The connections of the link pipes to the stock header assembly are sleeve joints secured with metal clamps. The system uses the stock catalytic converter. The Y-connecting tube can be ordered as an option which expands the basic configuration as follows: the basic system continues with the optional Y- connecting tube, which is conical and made of stainless steel. The Akrapovic Y-connecting tube replaces the stock Y-connecting tube where the catalytic converter is located. The catalytic converter cannot be mounted in the Akrapovic Y-connecting tube. The link pipes and the Y-connecting tube are attached with sleeve joints secured with metal tensioning springs as is the joint between the Y-connecting tube and the collector.   07-08 Yamaha R1 Slash Cut Slip-On Exhaust System Dyno Chart       Power & Torque: Measurements for both options of the exhaust were prepared. There is a minimal difference between the two options. Both exhaust options obtain a somewhat better result in the lower and particularly in the middle range of rotation. Despite the initial level of tuning, the system can substantially upgrade the stock release of power from the engine. At 12500 rpm, we measured 168.7 HP at the back wheel (both options). The systems do not differ much in terms of torque either. The upgrade of torque from the slip-on system is nicely evident particularly between 3200 rpm and 6500 rpm. In this range the motor achieves the highest gains.

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